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Copépodos (Crustacea: Hexanauplia) Continentales De Colombia: Revisión Y Adiciones Al Inventario

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Copépodos (Crustacea: Hexanauplia) Continentales De Colombia: Revisión Y Adiciones Al Inventario DOI: 10.21068/c2019.v20n01a04 Gaviria & Aranguren-Riaño Continental copepods (Crustacea: Hexanauplia) of Colombia: revision and additions to the inventory Copépodos (Crustacea: Hexanauplia) continentales de Colombia: revisión y adiciones al inventario Santiago Gaviria and Nelson Aranguren-Riaño Abstract We present the compilation of published and unpublished records of continental copepods of Colombia, as well as personal observations by the authors, yielding an additional list of 52 species and subspecies (7 calanoids, 20 cyclopoids, 25 harpacticoids). In addition to our former inventory (2007) of 69 species, the total number now reaches 121 taxa, increasing by 75 % the known number of continental copepods. Freshwater taxa increased in 15 species and subspecies. The number of brackish species (and marine species collected in brackish environments), recorded from coastal lagoons and temporal offshore ponds reached 39 species and subspecies. Thirteen taxa with locus typicus in Colombia have been described since 2007. Between 2007 and 2018, thirty-nine departmental records were made, and 43 new habitat records were reported (not including the species recorded as new for the country). Parasitic copepods of fish reached six species. However, the number of species is expected to increase with the survey of poorly studied regions like the Amazon and the Eastern Plains, and habitats like groundwater, benthos of lakes and ponds, semiterrestrial environments and additional coastal lagoons. Keywords. Biodiversity. Geographic distribution. Meiobenthos. Neotropical region. Zooplankton. Resumen Como resultado de la compilación de datos publicados y no publicados de copépodos continentales de Colombia, así como de observaciones personales de los autores, se estableció una lista adicional de 52 especies y subespecies (7 calanoideos, 20 cyclopoideos, 25 harpacticoideos). Junto con el inventario del año 2007 (69 taxa), el número actual al- canza 121 especies y subespecies, lo que representa un incremento del 75 %. El número de especies de agua dulce se incrementa en 15 especies y subespecies. El número de especies de aguas salobres (y de especies marinas recolectadas en ambientes salobres), reportadas en lagunas costeras y charcas cercanas a la costa, es de 39 especies y subespecies. Desde el año 2007, se describieron 13 taxones nuevos con locus typicus en Colombia. En el periodo comprendido entre el 2007 y el 2018 se registraron 39 especies en departamentos sin registros previos y 43 registros en biotopos no señala- dos para determinadas especies (sin considerar aquellas especies desconocidas anteriormente en Colombia). Se regis- traron seis especies de copépodos parásitos de peces. Sin embargo, con el estudio de regiones poco conocidas como el Amazonas y los Llanos Orientales, biotopos poco estudiados como las aguas subterráneas, el bentos de lagos y char- cas, ambientes semiterrestres, así como nuevas lagunas costeras, es de esperar un aumento en el número de especies. Palabras clave. Biodiversidad. Distribución geográfica. Meiobentos. Región Neotropical. Zooplancton. 50 ┃ BIOTA COLOMBIANA 20 (1) - 2019 Gaviria & Aranguren-Riaño Inventory of continental copepods of Colombia Introduction considered in the inventory: Calanoida (Acartiidae, Lucicutidae, Pseudodiaptomidae, Temoridae), The subclass Copepoda includes small crustaceans Cyclopoida (Halicyclopinae, Kelleridae, Oithonidae, inhabiting almost every aquatic biotope, as well Apocyclops) and Harpacticoida (Ameiridae, as semiterrestrial habitats such as mosses and Ectinosomatidae, Laophontidae, Metidae, Miraciidae, humid forest soils. Copepods inhabit from deep-sea Tachididae, Tegastidae, Cletocamptus, Mesochra). trenches up to high mountain lakes of the Andes, The remaining groups considered are the following: Mount Kenya and the Himalaya. The total number Calanoida (Centropagidae, Diaptomidae), Cyclopoida of copepods exceeds 11,300 accepted species and (Cyclopinae, Eucyclopinae) and Harpacticoida subspecies; together with nematodes they are the most (Canthocamptidae, Parastenocarididae). abundant metazoans on Earth (Walter & Boxshall, 2019). In continental waters, about 2500 species and Aims of this contribution are to elaborate a revision of the subspecies are known, but this number increases species richness of continental copepods of Colombia, when coastal lagoons with different salinity values compare their diversity in relation to the previous are also considered. The body size of adult copepods inventory (Gaviria & Aranguren, 2007), indicate orders, ranges from 0.2 to 17 mm, but most average 1-2 families, genera and species represented in the country, mm. Copepods can be free-living, symbiotic as well list the records of the copepod species in the different as internal or external parasites of almost all major departments and biotopes, compare the species richness aquatic metazoans (Huys & Boxshall, 1991). In of the Colombian genera in relation to the Neotropical freshwaters, parasitic copepods are found only in fish. Region, and indicate the world distribution of the Colombian species. Finally, we propose points of future A checklist of the free-living copepods of continental research in order to fill the gaps of the knowledge of waters of Colombia was published 12 years ago (Gaviria diversity of the continental copepods of Colombia. & Aranguren, 2007), including 69 species and subspecies (14 Calanoida, 41 Cyclopoida, 14 Harpacticoida). Materials and methods During the past years, the copepod fauna of new biotopes such as coastal lagoons, phytotelmata of the rain forest, Amazon floodplain lakes (varzea and igapó), The list of species presented here is the result of a critical freshwater lagoons (ciénagas), wetlands of the eastern compilation of published and unpublished records that Llanos, Andean lakes, ponds, wet mosses and reservoirs appeared after 2007, and of personal observations of have been studied. Moreover, the results presented here the authors and colleagues. Unpublished records are include reports of parasitic copepods of fish (Lernaeidae those indicated in Aranguren (2014) and obtained from and Ergasilidae) obtained from studies developed in the the study of zooplankton of Amazonian lakes (varzea departments of Valle del Cauca, Meta and Magdalena. type: Yahuarcaca, Tarapoto and El Correo; igapó type: Zacambú), Andean lakes (Tota, Fúquene, Iguaque and Coastal lagoons were considered in our inventory Guatavita) and Caribbean ciénagas (Ayapel, Momil, due to their topotypical character with narrow Purísima and Vipis). Part of this information was connection to the sea. Because of their connection to published in Aranguren et al. (2011). the marine environment, they show a wide range of salinity. Estuaries like those from the Pacific coast A synopsis of the families, genera, species and are not considered in the inventory. Coastal ponds subspecies listed for the country until 2007 and until are morphologically isolated from the sea and can 2018 is shown in Table 2. For comparative purposes, the temporarily reach hypersalinity. Thus, the following corresponding number of species and subspecies per groups with brackish or marine representatives are genus occurring in the Neotropical region is included. BIOTA COLOMBIANA 20 (1) - 2019 ┃ 51 DOI: 10.21068/c2019.v20n01a04 Gaviria & Aranguren-Riaño The published references include species of free-living New records of species for Colombia as well as new and parasitic copepods from continental biotopes and records of already known species are listed, indicating coastal lagoons and ponds, recorded during different their overall distribution, their presence in the types of studies, as follows: different Colombian departments and habitats, and the corresponding bibliographic references. 1) Zooplankton during limnological studies of Amazonian lakes (Aranguren-Riaño et al., 2011), wetlands of the The records of personal observations (SG – S. Gaviria; Orinoco basin (five lakes near the Orinoco River) (Rivera- NA – N. Aranguren; JM – J. Molina; DD – D. Defaye, Rondón et al., 2010), Andean lakes (Aranguren-Riaño et DB – D. Baribwegure) are based on samples obtained al., 2011) and reservoirs (Villabona-González et al., 2007, at the following localities and years: 2015; Aranguren-Riaño & Monroy-González, 2014) and Caribbean ciénagas (Gallo-Sánchez et al., 2009; Álvarez, 1. Amazonas: Laguna de Tarapacá, near Rio 2010; Aranguren-Riaño et al. 2011; Villabona et al., 2011; Putumayo, SG (2001). Laguna de Yahuarcaca, Laguna Jaramillo-Londoño & Aguirre-Ramírez, 2012). Zacambú, Laguna El Correo and Laguna Tarapoto, NA (2007). 2) Benthic harpacticoids collected in phytotelmata of the rain forest during taxonomic studies (Gaviria & 2. Antioquia: Microestación, Campus Universidad Defaye, 2012), and in an Andean lake and a pond of de Antioquia, Medellín, SG (1999). Reservoir La Fé, the páramo region during taxonomic and phylogenetic SG (1999); Reservoir Porce II, SG (1999); Reservoir studies (Laguna de Buitrago, Chingaza; pond near Riogrande II, SG (2001); lake at fishfarm Gaiteros, Laguna de San Rafael, Puracé) (Gaviria & Defaye, 2012, Sopetrán, SG (2001); Lake “Dos Lagos”, Carmen de 2015, 2017a, 2017b). Viboral, SG (2001); Lake Cerro del Padre Amaya, Palmitas, SG (2001); Lake Piedras Blancas, Guarne, SG 3) Limnetic and benthic species from coastal lagoons (1999); Ciénaga Vallecitos, Caucasia, SG (1999). and temporary ponds of the Caribbean region during studies of taxonomy and biodiversity: the investigated 3. Boyacá: Laguna de Iguaque, SG
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